Great looking truck, I just bought a roller off Ebay yesterday, I always wanted on. On the Lightning GT and Lightning GTX2 they have a locking center gear. I've been trying to search for the parts to buy but they show up discontinued everywhere. It's should be just a drop in part. They upgraded to a center diff when the stadiums came out and used the same center diff braces. Anyone know of site that sells Lightning Hopups and parts? (besides Amain or Tower, just looking for more options)